<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>topSearch 顶部🔍</title>
</head>
<body>
<center>
    <form action="#">
        <input type="text" align="center" width="100%">
        <input type="submit" value="搜索" align="center" width="100%">

    </form>
</center>

</p>
</body>
</html>